Kinematic analysis of a quick-return mechanism Driving equation p3=0.44+ot B2 ABL 1.70%of the cycle time is devoted to the cutting stroke and only 30%to the return stroke,hence named quick- return mechanism. 2.Nearly constant position of the slider during the period 0.5 to 0.6 s.This period permits an auxiliary machine to lift tools from work piece,prior to the return stroke. 3.The reduced crank lengths lead to reduced stroke lengths and marked reduction in peak acceleration of the slider, and significant reductions in reaction forces in joints.Kinematic analysis of a quick-return mechanism Driving equation f  0.44 w t 3 1. 70% of the cycle time is devoted to the cutting stroke and only 30% to the return stroke, hence named quick￾return mechanism. 2. Nearly constant position of the slider during the period 0.5 to 0.6 s. This period permits an auxiliary machine to lift tools from work piece, prior to the return stroke. 3. The reduced crank lengths lead to reduced stroke lengths and marked reduction in peak acceleration of the slider, and significant reductions in reaction forces in joints. B1 B2 B3 B4 B5 B6 f3